A U.S. Army Soldier assembles a thermal reference source from a Thermal Imaging for Fever Screening system during a training at Joint Base Langley-Eustis, Virginia, June 10, 2020. The thermal-imaging device training provided 128th Aviation Brigade instructors and cadre the knowledge to bring back the training to their units. (U.S. Air Force photo by Staff Sgt. Kaylee Dubois)